assertion  retraction  graph  subject    predicate        object     datatype    annotation
1          0           graph  DOID:3419  oio:id           DOID:3419  xsd:string  
1          0           graph  DOID:5632  rdfs:subClassOf  DOID:3419  _IRI        
1          0           graph  DOID:6335  rdfs:subClassOf  DOID:3419  _IRI        
1          0           graph  DOID:6334  rdfs:subClassOf  DOID:3419  _IRI        
1          0           graph  DOID:4992  rdfs:subClassOf  DOID:3419  _IRI